Loop through the range VBA - excel

Question

Looking for a simple loop through the range (say column A range("A5:A15")) if there is a blank cell within that range I need the entire row/rows associated with the blank cell/cells to be hidden.
I was thinking of something like this to accommodate various ranges but get "type Mismatch" error. Any reasons why
Sub test()
Dim rng As Range, cell As Variant, ar As Variant
Dim Rng1 As Range, Rng2 As Range, Rng3 As Range, Rng4 As Range
Dim MyArray(1 To 4) As Range
With ThisWorkbook.Worksheets("sheet1")
'Set MyArray = rng
Set MyArray(1) = Range("O8:O17")
Set MyArray(2) = Range("O55:O64")
Set MyArray(3) = Range("G37:G46")
Set MyArray(4) = Range("G89:G98")
'ar = Array(Rng1, Rng2, Rng3, Rng4)
'Set rng = .Range("O8:O17")
For Each cell In MyArray
If Len(cell.Value) < 1 Then
cell.EntireRow.Hidden = True
End If
Next cell
End With
End Sub
?

Answer 1

Something Like this:
You can put it in a subject:
For Each cell In Range("A5:A15")
If Len(cell.Value) < 1 Then
cell.EntireRow.Hidden = True
End If
Next
For Each cell In Range("A40:A55")
If Len(cell.Value) < 1 Then
cell.EntireRow.Hidden = True
End If
Next
New Answer :
Dim rng As Range, cell As Variant, ar As Variant
Dim Rng1 As Range, Rng2 As Range, Rng3 As Range, Rng4 As Range
Dim MyArray(1 To 4) As Range
With ThisWorkbook.Worksheets("sheet1")
'Set MyArray = rng
Set MyArray(1) = Range("O8:O17")
Set MyArray(2) = Range("O55:O64")
Set MyArray(3) = Range("G37:G46")
Set MyArray(4) = Range("G89:G98")
'ar = Array(Rng1, Rng2, Rng3, Rng4)
'Set rng = .Range("O8:O17")
Dim i As Integer
For i = LBound(MyArray) To UBound(MyArray)
For Each cell In MyArray(i)
If Len(cell.Value) < 1 Then
cell.EntireRow.Hidden = True
End If
Next
Next
End With

Answer 2

Try:
Option Explicit
Sub test()
Dim rng As Range, cell As Range
With ThisWorkbook.Worksheets("Sheet1")
Set rng = .Range("A5:A15")
For Each cell In rng
If cell.Value = "" Then
.Rows(cell.Row).EntireRow.Hidden = True
End If
Next cell
End With
End Sub

Answer 3

This takes full advantage of the Excel VBA model. I'm guessing it's faster than the above but have not conducted performance tests.
Dim Cell As Range
For Each Cell In Range("A5:A15").SpecialCells(xlCellTypeBlanks)
Cell.EntireRow.Hidden = True
Next

Answer 4

Try the following
Option Explicit
Sub youcouldhaveatleasttriedtodosomethingyourself()
Dim r1 As Range, r2 As Range, c As Range, target As Range
With Workbooks(REF).Sheets(REF)
Set r1 = .Range("A1:A54")
Set r2 = .Range("F3:F32")
Set target = Application.Union(r1, r2)
For Each area In target.Areas
For Each c In area
If c.Value = vbNullString Then .Rows(c.Row).EntireRow.Hidden = True
Next c
Next area
End With
End Sub
Please note that I now have set two exemplifying ranges. You can always add more range variables to the Union function.